衣康酸共聚物合成工艺的优化及其阻垢性能研究

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摘要以衣康酸(IA)、烯丙氧基羟丙基磺酸钠(AHPS)、烯丙基聚氧乙烯醚(APEG)为单体,通过自由基聚合的方式,合成出IA-AHPS-APEG三元共聚物。利用中心复合设计法建立了数学模型,结合静态阻碳酸钙垢测试,对聚合反应的引发剂用量、反应温度和反应时间进行了优化。通过FT-IR技术分析了聚合物IA-AHPS-APEG的分子结构,利用TG、SEM和XRD等技术分析了碳酸钙垢和硫酸钙垢的形貌和晶体结构变化,探究了聚合物IA-AHPS-APEG的阻垢机理。结果表明,优化后的IA-AHPS-APEG可以抑制碳酸钙和硫酸钙晶体的正常生长,并使碳酸钙晶体发生晶格畸变,其对碳酸钙的阻垢率最高可达93.2%,对硫酸钙的阻垢率接近100%。

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	高鹤
	蒋双双
	毛连山

关键词：中心复合设计法碳酸钙硫酸钙阻垢剂

Abstract： The IA-AHPS-APEG was synthesized by free radical polymerization, using itaconic acid (IA), 3-allyloxy-2-hydroxy-1-propane (AHPS), and allyloxy polyethylene glycol (APEG) as monomers. The polymerization initiator dosage, reaction temperature and reaction time were optimized by mathematical model established using the central composite design method, combined with the static calcium carbonate scale test. The molecular structure of polymer IA-AHPS-APEG was analyzed by FT-IR technology. The changes of morphology and crystal structure of CaCO₃ scale and CaSO₄ scale were analyzed by TG, SEM and XRD techniques, and the scale inhibition mechanism of polymer IA-AHPS-APEG were explored. The results show that the optimized IA-AHPS-APEG can inhibit the normal growth of CaCO₃ and CaSO₄ crystals, and cause lattice distortion of CaCO₃ crystals. Its maximum scale inhibition efficiency is 93.2% for CaCO₃ and close to 100% for CaSO₄.

Keywords： center composite design CaCO₃ CaSO₄ inhibitor

Received 2021-04-24;

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Corresponding Authors: 毛连山,教授,E-mail:maolianshan@njfu.com.cn。 Email: maolianshan@njfu.com.cn

About author: 高鹤(1995-),男,硕士研究生,现从事表面活性剂的研究。

引用本文:

高鹤, 蒋双双, 毛连山.衣康酸共聚物合成工艺的优化及其阻垢性能研究[J]. 化学工业与工程, 2022,39(5): 21-29

GAO He, JIANG Shuangshuang, MAO Lianshan.Optimization of synthesis process of itaconic acid copolymer and research on its scale inhibition performance[J]. Chemcial Industry and Engineering, 2022,39(5): 21-29

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